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I add stain and scale at fill-up and as part of my weekly maintenance. My dealer recommends 3 oz. at fill up and 6 capfuls (2 oz.) weekly. I read the directions on the bottle and it states to use 15 oz. per 10,000 gal. at fill up and 5 oz. per 10,000 gal. weekly. If my math is correct, that equates to 3/4 oz. at fill up and 1/4 oz. weekly in my 500 gal. tub. Why would the dealer recommend so much more? I don't like using any more chemicals than I have to, but at the same time I don't want to chance having deposits form on my heater/plumbing. I've also noticed that for a couple of days after adding this I get a white soapy looking film on top of the water when the jets are off. If I turn them on, it mixes and disappears, only to form again when the jets are turned back off. After a couple of days it's gone until I add stain and scale again the following week. What do ya'll think?
Thanks to all for the input. The stuff I use is made by All Clear, if that helps. I looked on the bottle but it doesn't show what chemicals are actually in the product.
Since I have only used the microban I have no clue about stain and scale. Can someone enlighten me.